<template>
	<view>
		<view class="search-box">
			<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<view class="sugg-list" v-if="searchResults.length !== 0">
			<view class="sugg-item" v-for="(item, i) in searchResults" :key="i" @click="gotoDetail(item, goods_id)">
				<view class="goods-name">
					{{ item.goods_name }}
				</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>
		</view>
		<view class="history-box" v-else>
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="cleanHistory"></uni-icons>
			</view>
			<view class="history-list">
				<uni-tag :text="item" v-for="(item, i) in historyList" :key="i" @click="gotoGoodsList(item)"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
export default {
	data() {
		return {
			show: true,
			showSync: true,
			searchval: '',
			timer: null,
			kw: '',
			searchResults: [],
			historyList: ['a', 'app', 'app']
		};
	},
	onLoad() {
		this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]');
	},
	methods: {
		input(e) {
			clearTimeout(this.timer);
			this.timer = setTimeout(() => {
				this.kw = e.value;
				console.log(e.value);
				this.getsearchList();
			}, 500);
		},
		async getsearchList() {
			if (this.kw === '') {
				this.searchResults = [];
				return;
			}
			const { data: res } = await uni.$http.get('/api/public/v1/foods/qsearch', { query: this.kw });
			if (res.meta.status !== 200) return uni.$showMsg();
			this.searchResults = res.message;
			this.saveSearchHistory();
		},
		gotoDetail(goods_id) {
			uni.navigateTo({
				url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods_id
			});
		},
		saveSearchHistory() {
			// this.historyList.push(this.kw);
			const set = new Set(this.historyList);
			set.delete(this.kw);
			set.add(this.kw);
			this.historyList = Array.from(set);
			uni.setStorageSync('kw', JSON.stringify(this.historyList));
		},
		cleanHistory() {
			this.historyList = [];
			uni.setStorageSync('kw', '[]');
		},
		gotoGoodsList(kw) {
			uni.navigateTo({
				url: '/subpkg/goods_list/goods_list?query=' + kw
			});
		}
	}
};
</script>

<style lang="scss">
.search-box {
	position: sticky;
	top: 0;
	z-index: 999;
}
.uni-searchbar {
	display: flex;
	flex-direction: row;
	position: relative;
	padding: 16px;
	background-color: #c00000;
}

.sugg-list {
	padding: 0 5px;
	.sugg-item {
		font-size: 12px;
		padding: 13px 0;
		border-bottom: 1px solid #efefef;
		display: flex;
		align-items: center;
		justify-content: space-between;

		.goods-name {
			//文字单行
			white-space: nowrap;
			//隐藏溢出
			overflow: hidden;
			//文本溢出，显示...
			text-overflow: ellipsis;
			margin-right: 3px;
		}
	}
}
.history-box {
	padding: 0 5px;
	.history-title {
		display: flex;
		justify-content: space-between;
		align-items: center;
		height: 40px;
		font-size: 13px;
		border-bottom: 1px solid #efefef;
	}
	.history-list {
		display: flex;
		flex-wrap: wrap;
		.uni-tag {
			margin-top: 5px;
			margin-right: 5px;
		}
	}
}
</style>
